A 42-year-old woman has been was arrested by police investigating phone hacking, on suspicion of money-laundering offences.

Scotland Yard said: "A 42-year-old woman was arrested this morning, Monday 28 May 2012, by officers from Operation Weeting, the Metropolitan Police Service investigation into the hacking of voicemail boxes.

"She was arrested after attending a south-west London police station by appointment at approximately 11:00hrs on suspicion of money laundering offences, contrary to section 327 of the Proceeds of Crime Act 2002 and is currently being questioned."

Scotland Yard confirmed that the woman is the first to be held on suspicion of money-laundering offences as part of its Operation Weeting probe.

The force confirmed the woman is not a current or former public official. She is the 25th person to be arrested as part of the investigation into phone hacking. She was later bailed until July, Scotland Yard said.

Section 327 of the Proceeds of Crime Act 2002 relates to concealing or transferring the proceeds of crime. The arrest could signal a fresh turn in Operation Weeting, which was launched on 26 January last year after the disclosure of "significant new information" from News International.

All but three of the former News International journalists arrested last month under Operation Weeting have had their bail extended to unspecified dates. Three of those arrested, including the News of the World's ex-US editor James Desborough, have been released without charge.

Scotland Yard has identified 829 potential victims of phone hacking, of whom 231 are said to be not contactable.

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